28.break new ground 创新 29.do the trick 做成功,达到理想的结果 30.drag one's feet 行动缓慢,磨磨蹭蹭不情愿 31.draw the line 拒绝,拒不容忍 32.feel down in the dumps 心情不好,情绪低落 33.few and far between 不多,少而分散的,不常碰到或发现的,稀少的 34.f...